CN105052188A - Method for performing measurement of objects and a device therefor - Google Patents
Method for performing measurement of objects and a device therefor Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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Abstract
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing measurement objects in the wireless communication system, the method comprising: receiving measurement configuration indicating an object to be measured; determining activating or deactivating measurement of the object depending on an activation condition; and measuring the object when the measurement of the object is activated.
Description
Technical field
The present invention relates to wireless (wireless) communication system, and more specifically, relate to a kind of method and the device thereof that perform the measurement of object.
Background technology
As the example of the mobile communication system that the present invention is applicable to, schematically illustrate third generation partner program Long Term Evolution (hereinafter, being called as LTE) communication system.
Fig. 1 is the view of the network configuration of the E-UMTS schematically illustrating exemplarily property radio (radio) communication system.Evolved Universal Mobile Telecommunications System (E-UMTS) is the Advanced Edition of conventional Universal Mobile Telecommunications System (UMTS) and its basic standardization is current carries out in 3 gpp.E-UMTS can be commonly referred to Long Term Evolution (LTE) system.For obtaining the details of the technical specification of UMTS and E-UMTS, can with reference to " third generation partner program; Technical specification group radio access network " version 7 and version 8.
Comprise subscriber equipment (UE), eNodeB (eNB) with reference to Fig. 1, E-UMTS and be positioned at the end of network (E-UTRAN) and be connected to the IAD (AG) of external network.ENB can send multiple data flow to obtain broadcast service, multicast services and/or unicast services simultaneously.
One or more community may be there is in each eNB.Community is set to operation in the bandwidth of such as 1.25MHz, 2.5MHz, 5MHz, 10MHz, 15MHz and 20MHz and provides down link (DL) or up link (UL) transmission service to multiple UE in this bandwidth.Can by different cell settings for providing different bandwidth.ENB control to and from multiple UE data send or receive.ENB sends the DL schedule information of DL data to notify that wherein DL data are assumed that time domain/frequency domain, coding, size of data and the mixed automatic retransfer and request (HARQ) relevant information that are sent out to UE to corresponding UE.In addition, eNB sends the UL schedule information of UL data to notify time domain/frequency domain, coding, size of data and the HARQ relevant information that can be used by UE to UE to corresponding UE.The interface for sending customer service or service control can be used between eNB.Core net (CN) can comprise the AG and network node etc. that the user for UE registers.AG manages the mobility of UE on tracing area (TA) basis.A TA comprises multiple community.
Although wireless communication technology has developed into the LTE based on Wideband Code Division Multiple Access (WCDMA) (WCDMA), the demand of user and service provider and expection are in rising.In addition, consider other radio access technologies developing, need new technological evolvement to guarantee high competitiveness in the future.The suitable power consumption etc. of the flexible use of the minimizing of every bit cost, the increase of service availability, frequency band, simplified structure, open interface, UE is needs.
Summary of the invention
Technical problem
Design solves the method and apparatus that the object of the invention is to a kind of measuring object in a wireless communication system of problem.The technical problem solved by the present invention is not limited to above-mentioned technical problem, and those skilled in the art can understand other technical problem according to following description.
Technical scheme
Object of the present invention can be realized by the method providing one to be operated by subscriber equipment (UE) in a wireless communication system, described method following steps: receiving step, receives the measurement configuration information indicating the object that will measure; Determining step, determines to activate or the measurement of object described in deexcitation according to activation condition; And measuring process, when the described measurement of described object is activated, measure described object.
In another aspect of this invention, provided in this article is UE (subscriber equipment) in a kind of described wireless communication system, and described UE comprises: radio frequency module; And for controlling the processor of described RF module, wherein, described processor is configured to receive the measurement configuration indicating the object that will measure, and determines to activate or the measurement of object described in deexcitation, and measure described object when the described measurement of described object is activated according to activation condition.
Preferably, described object is at least the frequency or community that will measure.
Preferably, and if described measurement configuration also indicate described to as if the first object or the second object described to liking described first object, then when without the need to measuring described first object when described determining step.
Preferably, described activation condition at least comprises close, the UE mobility of small-cell or the data load of Serving cell.
Preferably, if described activation condition is the close of small-cell, then activate described object when described UE is near small-cell and when described UE is away from object described in deexcitation during described small-cell, if or described activation condition is the close of small-cell, then the object described in deexcitation and when described UE is away from activating described object during described small-cell when described UE is near small-cell.
Preferably, if described activation condition is described UE mobility, then when described UE mobility is lower than activating described object during threshold value and when UE mobility is higher than object described in deexcitation during described threshold value, if or described activation condition is described UE mobility, then when described UE mobility is lower than object described in deexcitation during threshold value and when UE mobility is higher than activating described object during described threshold value.
Preferably, if described activation condition is the data load of Serving cell, then activate described object when the data load of Serving cell is greater than threshold value and when the data load of Serving cell is less than described threshold value object described in deexcitation, if or described activation condition is the data load of Serving cell, then the object described in deexcitation and activate described object when the data load of Serving cell is less than described threshold value when the data load of Serving cell is greater than threshold value.
Preferably, described method also comprises reception initial state information, and whether described initial state information indicates the initial condition of described object to be activate.
Beneficial effect
According to the present invention, the measurement of object (such as frequency or community) can be performed in a wireless communication system efficiently.Particularly, in small-cell is measured, handoff procedure can be performed efficiently.
It will be apparent to those skilled in the art that the effect realized by the present invention is not limited to describe special above, and more clearly understand other advantage of the present invention by according to the following detailed description of carrying out by reference to the accompanying drawings.
Accompanying drawing explanation
Accompanying drawing is included to provide a further understanding of the present invention, and accompanying drawing exemplified with embodiments of the present invention, and is used for principle of the present invention is described together with this specification.
In accompanying drawing:
Fig. 1 shows the figure of the network configuration of the evolved Universal Mobile Telecommunications System (E-UMTS) as the example of wireless communication system;
Fig. 2 A is the block diagram of the network configuration exemplified with evolved Universal Mobile Telecommunications System (E-UMTS), and Fig. 2 B is the block diagram of the framework depicting typical E-UTRAN and typical EPC;
The control plane of radio interface protocol between Fig. 3 shows based on UE and the E-UTRAN of third generation partner program (3GPP) radio access network standard and the figure of user plane;
Fig. 4 is the figure of the exemplary physical channel architecture used in E-UMTS system;
Fig. 5 is the figure for carrier aggregation;
Fig. 6 measures and the concept map of report measurement results for being performed by UE;
Fig. 7 is the concept map for the dual link between macrocell and small-cell;
Fig. 8 is illustrating the analog result for the 95th hundredths energy of small-cell measurement between frequency;
Fig. 9 is the concept map for measuring object according to the embodiment of the present invention;
Figure 10 is exemplified with the figure in the scene of measuring object according to the embodiment of the present invention; And
Figure 11 is the block diagram of communication equipment according to the embodiment of the present invention.
Embodiment
Universal Mobile Telecommunications System (UMTS) is the third generation (3G) asynchronous mobile communiation system of operation in based on the Wideband Code Division Multiple Access (WCDMA) (WCDMA) of European system, global system for mobile communications (GSM) and general packet radio service (GPRS).The third generation partner program (3GPP) of the Long Term Evolution (LTE) of the UMTS UMTS by standardization under discussion.
3GPPLTE is provided for the technology that can realize high speed packet communication.For LTE target proposes many schemes, described LTE target has comprised object and has been intended to reduce user and provider's cost, improves service quality and expansion and improve those of coverage and power system capacity.The suitable power consumption of the flexible use of every bit cost that 3GLTE needs to reduce, the service availability of increase, frequency band, simple structure, open interface and terminal is as upper strata requirement.
Hereinafter, will easily understand structure of the present invention, operation and further feature from embodiments of the present invention, the example of execution mode is exemplified in the accompanying drawings.The execution mode described after a while is the example that technical characteristic of the present invention is applied to 3GPP system.
Although use Long Term Evolution (LTE) system and LTE-Advanced (LTE-A) system to describe embodiments of the present invention in this manual, they are purely exemplary.Therefore, embodiments of the present invention are applicable to any other communication system corresponding with above-mentioned definition.In addition, although describe embodiments of the present invention based on Frequency Division Duplexing (FDD) (FDD) scheme in this manual, embodiments of the present invention can be easily modified and be applied to half-duplex FDD (H-FDD) scheme or time division duplex (TDD) scheme.
Fig. 2 A is the block diagram of the network configuration exemplified with evolved Universal Mobile Telecommunications System (E-UMTS).E-UMTS can also be called as LTE system.Communication network is widely deployed the various communication services to be provided such as voice (VoIP) by IMS and grouped data.
As illustrated in Fig. 2 A, E-UMTS network comprises Evolved UMTS Terrestrial radio access network (E-UTRAN), Evolved Packet Core (EPC) and one or more subscriber equipment.E-UTRAN can comprise one or more evolved NodeB (eNodeB) 20, and multiple subscriber equipment (UE) 10 can be arranged in a community.One or more E-UTRAN Mobility Management Entity (MME)/System Architecture Evolution (SAE) gateway 30 can be arranged on the end of network and be connected to external network.
As used herein, " down link " refers to the communication from eNodeB20 to UE10, and " up link " refers to the communication from UE to eNodeB.UE10 refers to the communication equipment that carried by user and can be called as mobile radio station (MS), user terminal (UT), subscriber station (SS) or wireless device.
Fig. 2 B is the block diagram of the framework depicting typical E-UTRAN and typical EPC.
As illustrated in Fig. 2 B, eNodeB20 provides the end points of user plane and control plane to UE10.MME/SAE gateway 30 provides the end points of mobile management function and session for UE10.ENodeB and MME/SAE gateway can be connected via S1 interface.
ENodeB20 normally carries out the fixed station communicated with UE10, and can be called as base station (BS) or access point.Can every cell deployment eNodeB20.The interface for sending customer service or service control can be used between eNodeB20.
MME provides various function, comprise to the NAS signaling of eNodeB20, NAS signaling security, AS security control, for the ambulant CN intermediate node signaling between 3GPP Access Network, idle pulley UE accessibility (comprising control and the execution of paging re-transmission), tracking zone list management (UE for being in idle and enable mode), PDNGW and service GW selects, in MME change situation, the MME switched is selected, select for the SGSN being switched to 2G or 3G3GPP Access Network, roaming, certification, comprise the bearer management function that dedicated bearer is set up, for the support that PWS (it comprises ETWS and CMAS) message sends.SAE gateway host provides various function, comprises and implements based on the transmitting stage packet marking in the packet filtering (by such as deep packet inspection) of every user, legal inspection, UEIP address assignment, down link, the charging of UL and DL seeervice level, gating and speed, implement based on the DL speed of APN-AMBR.In order to clear, MME/SAE gateway 30 will be called for short " gateway " in this article, but should be appreciated that this entity comprises both MME and SAE gateways.
Multiple node can be connected between eNodeB20 and gateway 30 via S1 interface.ENodeB20 can be connected to each other via X2 interface, and contiguous eNodeB can have the mesh network topology having X2 interface.
Fig. 2 B is the block diagram of the framework depicting typical E-UTRAN and typical EPC.As illustrated, eNodeB20 can perform for the selection of gateway 30, control (RAC) and be connected the function of mobility control between radio resource control (RRC) active period towards the scheduling of gateway route, beep-page message with the scheduling of transmission, broadcast channel (BCCH) information with transmission, resource in up link with both down links to the configuration of the dynamic assignment of UE10, eNodeB measurement and regulation, radio bearer control, Radio Admission under LTE_ACTIVE state.In EPC; and as already pointed out, gateway 30 can perform paging initiation, the encryption of LTE-IDLE condition managing, user plane, System Architecture Evolution (SAE) Bearer Control and the encryption of Non-Access Stratum (NAS) signaling and the function of integrity protection.
EPC comprises Mobility Management Entity (MME), gateway (S-GW) and grouped data network gateway (PDN-GW).MME has the information of connection about UE and ability, is mainly used in using when managing the mobility of UE.S-GW has the gateway of E-UTRAN as end points, and PDN-GW has the gateway of packet data network (PDN) as end points.
The control plane of radio interface protocol between Fig. 3 shows based on E-UTRAN and the UE of 3GPP radio access network standard and the figure of user plane.Control plane refers to the path for sending the control message for administer calls between UE and E-UTRAN.User plane refers to the path for being sent in the data (such as, speech data or internet packet data) generated in application layer.
Physics (PHY) layer of ground floor uses physical channel to provide information transfer service to high level.PHY layer is connected to medium access control (MAC) layer be positioned on high level via transmission channel.Between MAC layer and PHY layer, data are transmitted via transmission channel.Between the physical layer and the physical layer of receiver side of transmitter side, data are transmitted via physical channel.Time and frequency are used as radio resource by physical channel.In detail, physical channel uses OFDM (OFDMA) scheme to modulate in the downlink and uses single-carrier frequency division multiple access (SC-FDMA) scheme to modulate in the uplink.
The MAC layer of the second layer controls (RLC) layer via logic channel to the radio link of high level and provides service.The reliable transfer of data of rlc layer support of the second layer.The function of rlc layer can be realized by the functional block of MAC layer.PDCP (PDCP) layer of the second layer performs header compression function and is grouped in high efficiency of transmission in the radio interface of the little bandwidth with relative narrower unlike the control information wanted to obtain Internet protocol (IP) that such as IP version 4 (IPv4) grouping or IP version 6 (IPv6) divide into groups to reduce.
The radio resource being positioned at the bottom place of third layer controls (RRC) layer and is only defined in the control plane.Rrc layer about radio bearer (RS) configuration, reconfigure and release control logic channel, transmission channel and physical channel.RB refers to the service that the second layer provides transfer of data between UE and E-UTRAN.For this reason, the rrc layer of UE and the rrc layer of E-UTRAN exchange RRC information each other.
The community of eNB is set to operation in the bandwidth of such as 1.25MHz, 2.5MHz, 5MHz, 10MHz, 15MHz and 20MHz and provides down link or uplink transmission services to multiple UE in this bandwidth.Can by different cell settings for providing different bandwidth.
Downlink transmission channel for data are sent to UE from E-UTRAN comprises for the broadcast channel (BCH) of transmitting system information, for sending the paging channel (PCH) of beep-page message and the downlink sharied signal channel (SCH) for sending customer service or control message.The business of downlink multicast or broadcast service or control message can be sent by down link SCH and can be sent by independent downlink Multicast Channel (MCH).
For data are comprised Random Access Channel (RACH) for sending initial control message and the up link SCH for sending customer service or control message from the uplink channel that UE is sent to E-UTRAN.To be defined within transmission channel and the logic channel being mapped to transmission channel comprises Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), Common Control Channel (CCCH), multicast control channel (MCCH) and multicast control channel (MTCH).
Fig. 4 shows the figure of the example of the physical channel structure used in E-UMTS system.Physical channel comprises the several subframe on time shaft and the several subcarriers on frequency axis.Here, subframe comprises the multiple symbols on time shaft.Subframe comprises multiple Resource Block and a Resource Block comprises multiple symbol and multiple subcarrier.In addition, the certain subcarriers of the special symbol of subframe (such as, the first symbol) can be used for physical downlink control channel (PDCCH), that is, L1/L2 control channel by each subframe.In the diagram, L1/L2 control information sending zone (PDCCH) and data area (PDSCH) is shown.In one embodiment, the radio frames (radioframe) of 10ms is employed and a radio frames comprises 10 subframes.In addition, a subframe comprises two continuous print time slots.The length of a time slot can be 0.5ms.In addition, subframe comprises multiple OFDM symbol and a part (such as, the first symbol) for described multiple OFDM symbol can be used to send L1/L2 control information.Transmission time interval (TTI) as the unit interval for sending data is 1ms.
Base station and UE are mainly used as the DL-SCH of transmitting channel to send/receive the data except specific control signal or special services data via the PDSCH as physical channel.How instruction PDSCH data receives PDSCH data and is sent out being included under the state in PDCCH the information of PDSCH decoding data if being sent to which UE (one or more UE) and UE.
Such as, in one embodiment, specific PDCCH Radio Network Temporary Identifier (RNTI) " A " carries out the process of CRC mask, and use radio resource " B " (such as about the information of data via specific sub-frame, frequency location) and transport format information " C " (such as, transmission block size, modulation, coded message etc.) send.Then, one or more UE being arranged in community uses its RNTI information to monitor PDCCH.Further, the particular UE with RNTI " A " reads PDCCH and the PDSCH then received indicated by B and C in PDCCH information.
Fig. 5 is the figure for carrier aggregation.Describe for supporting the carrier aggregation technology of multiple carrier wave as follows with reference to Fig. 5.
As above describe mention, by carrier aggregation to bundle legacy wireless communication system (such as, LTE system) in the mode of maximum 5 carrier waves (component carrier: CC) of bandwidth unit (such as, 20MHz) of definition support the system bandwidth of nearly maximum 100MHz.Component carrier for carrier aggregation can be equal to each other or difference in amount of bandwidth.Further, each in component carrier can have different frequency bands (or centre frequency).Component carrier may reside on sequential frequency band.But the component carrier be present on discontinuous frequency band also can be used to carrier aggregation.In carrier aggregation technology, symmetrically or asymmetrically can distribute the amount of bandwidth of up link and down link.
The multiple carrier waves (component carrier) being used for carrier aggregation can be divided into principal component carrier wave (PCC) and auxiliary component carrier (SCC).PCC can be referred to as P-cell (main plot) and SCC can be referred to as S-cell (auxiliary community).Principal component carrier wave is the carrier wave be used for user equipment exchange business and control signal by base station.In this case, control signal can comprise the interpolation of component carrier, the setting, up link (UL) mandate, down link (DL) distribution etc. for principal component carrier wave.Although base station can use multiple component carrier, the subscriber equipment belonging to respective base station can be set as only there is a principal component carrier wave.If subscriber equipment operates under single carrier mode, then use principal component carrier wave.Therefore, in order to be used independently, principal component carrier wave should be set as meeting all requirements that the data between base station and subscriber equipment and control signal are exchanged.
In addition, auxiliary component carrier can comprise and can activate according to size needed for transceiving data or the additional components carrier wave of deexcitation.Auxiliary component carrier can be set as only using according to the particular command Sum fanction received from base station.In order to support additional bandwidth, auxiliary component carrier can be set as use together with principal component carrier wave.By the component carrier activated, the control signal as UL mandate, DL distribution etc. can be received from base station by subscriber equipment.By the component carrier activated, the control signal as CQI (CQI), pre-coding matrix index (PMI), order designator (RI), detection reference signal (SRS) etc. UL can be sent in from subscriber equipment to base station.
The scope of principal component carrier wave and multiple auxiliary component carrier can be had to the Resourse Distribute of subscriber equipment.Under multi-carrier polymerizing pattern, based on system loading (that is, static state/dynamic load is balanced), peak data rate or quality of service requirement, auxiliary component carrier can be distributed to DL and/or UL by system asymmetrically.When using carrier aggregation technology, after RRC connection procedure, the setting of component carrier can be provided to subscriber equipment by base station.In this state, RRC connects and may mean that radio resource is assigned to subscriber equipment based on the RRC signaling exchanged between the rrc layer and network of subscriber equipment via SRB.After completing RRC connection procedure between the user equipment and base station, subscriber equipment can provide set information about principal component carrier wave and auxiliary component carrier by base station.Set information about auxiliary component carrier can comprise the interpolation/deletion (or activation/deactivation) of auxiliary component carrier.Therefore, in order to activate auxiliary component carrier between base station and subscriber equipment or the previous auxiliary component carrier of deexcitation, the exchange performing RRC signaling and MAC control element may be necessary.
The activation of auxiliary component carrier or deexcitation can be determined based on the loading condiction of service quality (QoS), carrier wave and other factors by base station.Further, base station can use the control message of the information comprised as the instruction type (activation/deactivation) of DL/UL, auxiliary component carrier list etc. to indicate auxiliary component carrier to set to subscriber equipment.
Fig. 6 measures and the concept map of report measurement results for being performed by UE.
E-UTRAN (Evolved UMTS Terrestrial radio access network) namely uses RRCConnectionReconfiguration message to provide the measurement of the UE being applicable to be in RRC_CONNECTED to configure (S601) by means of dedicated signaling.
UE can be asked to perform with the measurement of Types Below (S603): measurement i) under the downlink carrier frequency of Serving cell (frequency in measurement), ii) from the measurement (inter-frequency measurements) under any one the different frequency in the downlink carrier frequency of Serving cell; Measure between the RAT of iii) UTRA frequency, iv) measure between the RAT of GERAN frequency, measure between the RAT of v) CDMA2000HRPD or CDMA2001xRTT frequency.
Measure configuration and comprise following parameter:
1. measuring object: UE performs to it object measured, i) for measuring in frequency and inter-frequency measurements measurement, to liking single E-UTRA carrier frequency.Be associated with this carrier frequency, E-UTRAN can the list of allocating cell particular offset and the list of " blacklist " community.Blacklist community is not considered in event evaluation or measurement report, ii) UTRA between RAT is measured, measuring object is the set of the community in single UTRA carrier frequency, iii) GERAN between RAT is measured, measuring object is the set of GERAN carrier frequency, iv) measure for CDMA2000 between RAT, measuring object is the set of the community in single (HRPD or 1xRTT) carrier frequency.
2. report configuration: the list that each report configuration is configured by the following report formed: i) report criterion: trigger the criterion that UE sends measurement report.This can be periodic or individual event describes, ii) amount that comprises at measurement report of reporting format: UE and relevant information (quantity of the community such as will reported).
3. measure mark: each mark of measuring is by a measuring object and a list reporting to configure the measurement that links and identify.By configuring multiple measurement mark, same report configuration can be will be linked to more than a measuring object, and the configuration of the report more than same measuring object can be linked to.Measurement is identified in measurement report and is used as base value.
4. amount configuration: each RAT type configuration one amount configuration.Amount configuration definition is used for all event evaluation of this measurement type and the measuring amount of correlation report and relevance filtering.Often measuring amount can configure a filter.
5. measurement clearance: UE can be used for performing the cycle of measuring, and does not namely have (UL, DL) to transmit and is scheduled.
UE carrys out reporting measurement information (S605) according to the measurement configuration such as provided by E-UTRAN.
E-UTRAN is only the single measuring object of given frequency configuration, namely can not configure two or more measuring objects for the same frequency with different relevant parameters (such as different skews and/or blacklist).E-UTRAN can configure the Multi-instance (such as being had two report configurations of different threshold value by configuration) of similar events.
UE safeguards single measuring object list, single report configured list and single measurement identification list.Measuring object list comprises the measuring object that every RAT type is specified, and may to comprise between object in frequency (namely corresponding with service frequency object), frequency object between object and RAT.Similarly, report that configured list comprises report configuration between E-UTRAN and RAT.Measuring object can be linked to any report configuration of identical RAT type.Some report configurations can not be linked to measuring object.Similarly, some measuring objects can not be linked to report configuration.
Its role can be divided in multiple community in measuring process.If for supporting what the UE of CA (carrier aggregation) configured, then Serving cell comprises PCell and one or more SCell.List community is the community enumerated in measuring object.But the community detected does not enumerate in measuring object the community detected in the carrier frequency indicated by measuring object by UE.
E-UTRA, UE are measured on Serving cell, the community enumerated and the community detected and reports.UTRA, UE between RAT are measured on the community enumerated and the community alternatively in the scope that report is allowed by E-UTRAN and reports.GERAN, UE between RAT are measured on the community detected and reports.CDMA2000, UE between RAT are measured on the community enumerated and reports.
About the step of S601, E-UTRAN is applicable to guarantee that it comprises measuring object for each service frequency when UE has measurement configuration.And same E-UTRAN is applicable to operation report configuration under the object being set as reportCGI (Cell Global Identification) and configures a measurement mark at the most.
About the step of S603, UE performs measuring object according to measurement configuration.If UE receives the measurement configuration comprising " measObjectToRemoveList ", then UE performs measuring object and removes process.If UE receives the measurement configuration comprising " measObjectToAddModList ", then UE performs measuring object interpolation or modification process.If UE receives the measurement configuration comprising " reportConfigToRemoveList ", then UE reports on the implementation configuration removal process.If UE receives the measurement configuration comprising " reportConfigToAddModList ", then the configuration of UE reports on the implementation is added or modification process.If UE receives the measurement configuration comprising " quantityConfig ", then UE execution amount layoutprocedure.If UE receives the measurement configuration comprising " measIdToRemoveList ", then UE performs and measures mark removal process.If UE receives the measurement configuration comprising " measIdToAddModList ", then UE performs and measures mark interpolation/modification process.If UE receives the measurement configuration comprising " measGapConfig ", then UE performs measurement clearance layoutprocedure.If UE receives the measurement configuration comprising " s-Measure ", then parameter s-the Mesure in VarMeasConfig is set as the minimum value of the RSRP scope indicated by the value of received s-Measure by UE.If UE receives the measurement configuration comprising " preRegistrationlnfoHRPD ", then preRegistrationlnfoHRPD is forwarded to CDMA2000 upper strata by UE.If UE receives the measurement configuration comprising " speedStatePars ", then the parameter s peedStatePars in VarMeasConfig is set as the value of received speedStatePars by UE.
About the step of S605, measurement result is sent to E-UTRAN by UE.For the measurement ID triggering measurement report procedure, UE will in measurement report message setting measurement result.
Fig. 7 is the concept map for the dual link between macrocell and small-cell.
In the next system of LTE-A, in order to the optimization etc. of data service, multiple small-cell (such as Microcell) may reside in be had in the large community (such as macrocell) of the coverage larger than small-cell.Such as, can for a subscriber equipment combination macrocell and Microcell (such as dual link).If macrocell is mainly used in the management mobility (such as PCell) of UE and Microcell is mainly used in and promotes throughput (such as SCell) in this case, then combine, to multiple communities of UE, there is different coverages each other.And each in community can by each management in base station.Base station is (between website the CA) that geographically separate.
Dual link means that UE can be connected to macrocell and small-cell simultaneously.Under dual link implementations, data radio can be unloaded to small-cell and provide high-throughput to reduce switching possibility while keeping dispatching radio bearer (SRB) or other DRB in macrocell some carrying in (DRB).Macrocell is by the frequencies operations of MeNB (macrocell eNB) via f1, and small-cell is by the frequencies operations of SeNB (small-cell eNB) via f2.Frequency f 1 and frequency f 2 can be equal.Backhaul interface between MeNB and SeNB is undesirable, this means in backhaul, there is sizable delay and centralized scheduling therefore in a node is impossible.
In order to benefit from dual link, the Best-Effort service of delay-tolerant is discharged into small-cell, but other business (such as SRB or real time business) is still served by macrocell.
Fig. 8 is illustrating the analog result for the 95th hundredths energy of small-cell measurement between frequency.
Small-cell can be disposed for various reasons, thus cause the heterogeneous network of the small-cell comprising different size/type (such as micro-, slight, femto).One expection scene be user from macro-layer to the unloading of slight region layer, wherein macro-layer and slight region layer are on a different carrier frequency.Such as, if it concentrates on one of them grand frequency provide all standing scope and wherein for comprising the scene be arranged on for improvement of the unloading object picocell of the means of the perception QoS in hotspot location on second frequency layer.Detect for small-cell between frequency, it will concentrate on following use-case, and wherein, for unloading/load balancing object, the carrier wave that UE has non-homogeneous coverage (such as focus deployment) for expection does small-cell measurement between frequency.
Target is that utilizing following criterion to carry out optimization data unloading potentiality (such as, makes the amount of the data sent in picocell instead of in macrocell maximize; The time making UE avoid macrocell maximizes):
Criterion 1) should make HetNet (heterogeneous network) dispose in for frequency between small-cell measure UE minimise power consumption.
Criterion 2) any interruption caused due to small-cell measurement between frequency on the serving cell should be made to minimize.
Criterion 3) mobility performance degradation between frequency should do not made by small-cell between measuring frequency.
Criterion 4) the mobility performance degradation of traditional UE should not be made to detect to improve small-cell between frequency by the UE of support lte-a system.
The impact of UE power consumption is depended on that UE performs inter-frequency measurements and has multifrequency numerous and how long continue.Particularly, the UE power consumption of being benefited how many relative to unloader meeting and QoS is such as lost due to the delay detection of small-cell.As in figure 8, also investigate identical investigation result and whether be equally applicable to the detection of candidate SCell on second frequency layer.Strengthening function is contrast the mechanism that available functionalities can be utilized to realize to assess.
In target use-case described above, small-cell provides the hotspot coverage overlapping with providing the macrocell of continuous coverage.Because UE will not know when small-cell coverage can be used, so UE always may must do inter-frequency measurements for mark small-cell.If always need UE to perform measurement, then significant UE power consumption is expection.As in figure 8, if apply existing space pattern (such as, the 6ms measurement clearance in every 80ms cycle), then, when the quantity of measured community is less than 20, about 1000J energy ezpenditure is observed.That is, conclude that performing measurement continuously according to existing performance requirement causes very high battery consumption, and on the not shown appreciable impact of unloading potentiality.
In the deployment scenario of small-cell, for unload object dense frequencies between small-cell measure in UE power consumption and be not desirable in the service cell outage time.Expect UE only when the load shedding for Serving cell be need and UE near the small-cell disposed for unloading time just perform small-cell measurement between frequency.
But, measuring optimization to realize small-cell between this frequency, reconfiguring needing measurement very continually.Such as, when the data load of Serving cell lightens and no longer needs load shedding, the measurement of the UE for all connections should be reconfigured for no longer small-cell between measuring frequency by Serving cell.And then, when data load becomes heavy again and Serving cell is wanted to unload data, the measurement of the UE for all connections should be reconfigured for small-cell between measuring frequency again by Serving cell.If the condition (data load of the close and Serving cell of such as small-cell) reconfigured for triggering measurement dynamically changes, then reconfiguring by measurement the signaling consumption caused will increase widely.
In addition, measure and reconfigure load shedding may be caused to postpone, although because UE small-cell near between frequency, it can not between measuring frequency small-cell until measurement has reconfigured.
Fig. 9 is the concept map for measuring object according to the embodiment of the present invention.
UE is from cell receiver to measurement configuration (S901) indicating the object that will measure.Serving cell can be macrocell.Object can be at least the frequency or community that will measure.Community can be one or more small-cell of the coverage being arranged in Serving cell.Small-cell can be the community (such as, picocell, Femto cell etc.) with the coverage less than the coverage of Serving cell.Measure configuration and also comprise the type indicator that denoted object is the first object or the second object.
First pair as if common survey object.That means when Serving cell order measurement report can when without any measuring the first object when condition.On the other hand, second to as if UE can activate or the measuring object of deexcitation.By measuring configuration, UE can distinguish the second object and the first object.
Alternatively, type indicator can only be added to second object.In this case, UE can think the first object by not having the object of type indicator.Can for each object define styles designator.
UE is also from cell receiver initial condition designator, and whether the initial condition of this initial condition designator denoted object is activate (S903).
Desirably, the initial condition of the second object is deactivation status.After from cell receiver to measurement configuration, UE starts only to carry out measuring until the second object becomes state of activation for the first object.When the second object becomes state of activation, UE starts to measure for the second object.
Alternatively, initial condition designator can be used to refer to the initial condition of the second object.Initial condition designator can be defined for each second object or each UE.
If initial condition designator indicates the second object to be in deactivation status, then when the second object becomes state of activation, UE starts to measure for the second object.On the other hand, if initial condition designator indicates the second object to be in state of activation, then UE starts to measure for the second object immediately.
After step S901 and step S903, UE measures (S905) according to the activation of activation condition determination object or deexcitation.If meet activation condition, then UE will activate object and starts the measurement (S907) for this object.
Activation condition can be sent via UE signal specific, broadcast singal or multicast signal by Serving cell.
Activation condition at least comprises close, the UE mobility of small-cell or the data load etc. of Serving cell.
Activation condition can be the close of small-cell.In this case, object and when UE is away from deexcitation object during small-cell is activated when UE is near small-cell.Or, the deexcitation object when UE is near small-cell and when UE away from during small-cell activate object.
Activation condition can be UE mobility.In this case, when UE mobility is lower than activation object during threshold value and when UE mobility is higher than deexcitation object during threshold value.Or, when UE mobility is lower than deexcitation object during threshold value and when UE mobility activates object higher than during threshold value.
Activation condition can be the data load of Serving cell.In this case, activate object when the data load of Serving cell becomes heavy and when the data load of Serving cell lightens deexcitation object.Or, the deexcitation object when the data load of Serving cell is greater than threshold value and activate object when the data load of Serving cell is less than threshold value.
Desirably, one or more activation condition can be configured to UE.Such as, if activation condition is " small-cell close " and " data load of Serving cell ", then, when the data load of UE near small-cell or Serving cell becomes heavy, UE will activate object.
Desirably, two or more activation conditions can be configured to a condition.Such as, if activation condition is " small-cell close to and the data load of Serving cell ", then only when UE near small-cell and the data minus loading of Serving cell time, UE just will activate object B.
Desirably, UE automatically can activate or deexcitation object when the activation condition do not configured by Serving cell.
Desirably, to activate or the object of deexcitation can be the second object.
After the step of S907, UE can send measurement report (S909) to Serving cell, and UE can perform the switching of object by the order of Serving cell.
Figure 10 is the figure exemplified with in the scene for operating according to the embodiment of the present invention.
UE measures configuration (S1001) from cell receiver.Serving cell can by both measuring object A and measuring object B configuration to UE.Serving cell can be macrocell and measuring object A and measuring object B can be the frequency of the small-cell of the coverage being arranged in grand Serving cell.Frequency 3 is used to the small-cell disposed into the load shedding of macrocell, so frequency 3 is set to measuring object B.
UE can receive activation condition, and described activation condition is " load of the close and Serving cell of small-cell " (S1003).
If do not use initial condition to indicate, then after from cell receiver to measurement configuration, measuring object B (such as frequency 3) to think under deactivation status and starts the measurement (S1005) for measuring object A (such as frequency 1 and frequency 2) by UE.
UE is from cell receiver information on load.Grand Serving cell is overload (S1007).But UE does not activate measuring object B, because it does not think that it is near small-cell.
UE thinks that it is near small-cell (S1009).Meet activation condition, so UE starts the measurement (S1011) for measuring object B.
UE is from cell receiver information on load.The load of grand Serving cell lightens (S1013).After receiving this information on load, UE deexcitation measuring object B and stop frequency 3 is measured (S1015).
UE is from cell receiver information on load.The load of grand Serving cell becomes heavy (S1017).After receiving this information on load, UE activates measuring object B and starts to measure (S1019) frequency 3.And UE is switched to small-cell (S1021).
Figure 11 is the block diagram of communication equipment according to the embodiment of the present invention.
Equipment shown in Figure 11 can be the subscriber equipment (UE) and/or the eNB that are suitable for performing above-mentioned mechanism, but it can be any equipment for performing same operation.
As shown in figure 11, this equipment can comprise DSP/ microprocessor (110) and RF module (transceiver; 135).DSP/ microprocessor (110) is electrically connected with transceiver (135) and controls it.This equipment can also comprise power management module (105), battery (155), display (115), keypad (120), SIM card (125), storage arrangement (130), loud speaker (145) and input unit (150) based on the selection of its execution mode and designer.
Particularly, Figure 11 can represent to comprise and is configured to from the receiver (135) of network reception request message and the UE being configured to the transmitter (135) sending or receive timing information to network.These receivers and transmitter can form transceiver (135).UE also comprises the processor (110) being connected to transceiver (135: receiver and transmitter).
Further, Figure 10 can represent the transmitter (135) comprising and be configured to send a request message to UE and the network equipment being configured to receive from UE the receiver (135) sending or receive timing information.These transmitters and receiver can form transceiver (135).Network also comprises the processor (110) being connected to transmitter and receiver.This processor (110) can be configured to calculate the stand-by period based on transmission or reception timing information.
It is evident that to those skilled in the art, various modifications and variations can be made to the present invention without departing from the spirit or scope of the present invention.Therefore, the present invention is intended to the modifications and variations containing this invention, as long as they fall in the scope of claims and equivalent thereof.
In the combination that embodiments of the present invention as described above are element of the present invention and feature.Unless otherwise mentioned, otherwise these elements or feature can be considered to optionally.Each element or feature can when need not be put into practice with when other element or Feature Combination.In addition, embodiments of the present invention can be constructed by the part of composite component and/or feature.The operating sequence described in embodiments of the present invention can be rearranged.Some structures of any one execution mode can be included in another embodiment and can replace with the correspondence structure of another execution mode.To those skilled in the art clearly, the claim that non-explicitly is quoted in each other in the following claims can be presented as embodiments of the present invention in combination, or is included as new claim by subsequent correction case after have submitted the application.
In embodiments of the present invention, the specific operation being described as being performed by BS can be performed by the upper layer node of BS.That is, it is evident that, in the network be made up of the multiple network nodes comprising BS, for communicate with MS and the various operations performed can be performed by BS or the network node except this BS.The replacement such as term " fixed station ", " Node B ", " base station (BS) ", " access point " can be used in term " eNB ".
Execution mode described above can be realized by various means (such as, by hardware, firmware, software or its combination).
In hardware configuration, method according to the embodiment of the present invention can be realized by one or more application-specific integrated circuit (ASIC) (ASIC), digital signal processor (DSP), digital signal processor (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor etc.
In firmware or software merit rating, method according to the embodiment of the present invention can realize with the form performing the module, process, function etc. of function described above or operation.Software code can be stored in a memory cell and be performed by processor.Memory cell can be positioned at the inside or outside and can send data via various any means known to processor and receive data from processor of processor.
It will be understood by those skilled in the art that when not departing from spirit of the present invention and necessary characteristic, the present invention can be performed with other ad hoc fashion except those modes described in this paper.Therefore above-mentioned execution mode is interpreted as exemplary in all respects, and nonrestrictive.Scope of the present invention should be determined by claims and legal equivalents thereof, and can't help foregoing description and determine, and the institute fallen in the meaning of claims and full scope of equivalents changes and is intended to be included therein.
Industrial applicability
Although concentrated on the example being applied to 3GPPLTE system to describe said method, except 3GPPLTE system, the present invention has also been applicable to various wireless communication system.
Claims (15)
1. the method for user equipment (UE) for operating in a wireless communication system, said method comprising the steps of:
Receiving step, receives the measurement configuration information indicating the object that will measure;
Determining step, determines to activate or the measurement of object described in deexcitation according to activation condition; And
Measuring process, when the described measurement of described object is activated, measures described object.
2. method according to claim 1, wherein, described object is at least the frequency or community that will measure.
3. method according to claim 1, wherein, described measurement configuration information also indicates described to liking the first object or the second object,
Wherein, if described to as if described first object, then when without the need to measuring described first object when described determining step.
4. method according to claim 1, wherein, described activation condition at least comprises close, the UE mobility of small-cell or the data load of Serving cell.
5. method according to claim 4, wherein, if described activation condition is the close of described small-cell, then, when described UE is near small-cell, activates described object, and when described UE is away from described small-cell, object described in deexcitation, or
Wherein, if described activation condition is the close of described small-cell, then when described UE is near small-cell, object described in deexcitation, and when described UE is away from described small-cell, activate described object.
6. method according to claim 4, wherein, if described activation condition is described UE mobility, then, when described UE mobility is lower than threshold value, activates described object, and when UE mobility is higher than described threshold value, object described in deexcitation, or
Wherein, if described activation condition is described UE mobility, then when described UE mobility is lower than threshold value, object described in deexcitation, and when described UE mobility is higher than described threshold value, activate described object.
7. method according to claim 4, wherein, if described activation condition is the data load of described Serving cell, then when the data load of described Serving cell is greater than threshold value, activate described object, and when the data load of described Serving cell is less than described threshold value, object described in deexcitation, or
Wherein, if described activation condition is the data load of described Serving cell, then when the data load of described Serving cell is greater than threshold value, object described in deexcitation, and when the data load of described Serving cell is less than described threshold value, activate described object.
8. method according to claim 1, described method is further comprising the steps of:
Receive initial condition designator, whether described initial condition designator indicates the initial condition of described object to be activate.
9. the user equipment (UE) in wireless communication system, described UE comprises:
Radio frequency module; And
Processor, this processor is configured to control described RF module,
Wherein, described processor is configured to: receive the measurement configuration information indicating the object that will measure, and determines to activate or the measurement of object described in deexcitation, and when the described measurement of described object is activated, measure described object according to activation condition.
10. UE according to claim 9, wherein, described object is at least the frequency or community that will measure.
11. UE according to claim 9, wherein, described activation condition at least comprises close, the UE mobility of small-cell or the data load of Serving cell.
12. UE according to claim 11, wherein, if described activation condition is the close of described small-cell, then when described UE is near small-cell, described processor activates described object, and when described UE is away from described small-cell, object described in described processor deexcitation, or
Wherein, if described activation condition is the close of described small-cell, then when described UE is near small-cell, object described in described processor deexcitation, and when described UE is away from described small-cell, described processor activates described object.
13. UE according to claim 11, wherein, if described activation condition is described UE mobility, then when described UE mobility is lower than threshold value, described processor activates described object, and when described UE mobility is higher than described threshold value, object described in described processor deexcitation
Wherein, if described activation condition is described UE mobility, then when described UE mobility is lower than threshold value, object described in described processor deexcitation, and when described UE mobility is higher than described threshold value, described processor activates described object.
14. UE according to claim 11, wherein, if described activation condition is the data load of described Serving cell, then when the data load of described Serving cell is greater than threshold value, described processor activates described object, and when the data load of described Serving cell is less than described threshold value, object described in described processor deexcitation
Wherein, if described activation condition is the data load of described Serving cell, then when the data load of Serving cell is greater than threshold value, object described in described processor deexcitation, and when the data load of described Serving cell is less than described threshold value, described processor activates described object.
15. UE according to claim 9, wherein, described processor is also configured to receive initial condition designator, and whether described initial condition designator indicates the initial condition of described object to be activate.
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| CN111656816A (en) * | 2017-11-28 | 2020-09-11 | 瑞典爱立信有限公司 | Relating to triggering measurements in LTE-NR interworking |
| CN111656816B (en) * | 2017-11-28 | 2023-02-28 | 瑞典爱立信有限公司 | Method, equipment and system for triggering measurement in LTE-NR interworking |
| WO2019200608A1 (en) * | 2018-04-20 | 2019-10-24 | Qualcomm Incorporated | Techniques and apparatuses for numerology signaling |
| WO2022198569A1 (en) * | 2021-03-25 | 2022-09-29 | Oppo广东移动通信有限公司 | Measurement configuration method, terminal device, network device, chip, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| US9674743B2 (en) | 2017-06-06 |
| WO2014142512A8 (en) | 2015-10-01 |
| CN105052188B (en) | 2019-04-30 |
| WO2014142512A1 (en) | 2014-09-18 |
| KR20150130473A (en) | 2015-11-23 |
| US20150373597A1 (en) | 2015-12-24 |
| KR102100194B1 (en) | 2020-04-13 |
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